1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c96c6b5fbb1936b92fc7ca6988f7e61a138c956e9c35f3d7b0c7e323e7b831b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56012637-e156-4839-b315-fe8211ae7602.json and https://artists.proofprofile.net/proofs/artist/56012637-e156-4839-b315-fe8211ae7602.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Rave Won't Leave Me Alone - Original Mix
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58bfc225d5f7354fd0df6943c141f2b965ff9006ee478a1f476dbf131f3e9bd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1524205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5e96f3a512e534d1d6786d2609c105597c23875f233c157fb3f35a5249915b. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1530373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e7fbc7f69382bf0dffe44221d5b7e579f4dc9941b237ff80b8cf13692d08ae. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1575016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d526868b57c8a0489ec4a7f54550294cd414a4b35bd31dffe333703051a85b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1817187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7ee629a2077101aa778335217eeae091f1fcaa946605eae54881ce0ea9a90a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAF5R1800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137ed3cecd0fc152db2b9b82e9052d6d3f1651315447a0844fba6ae70419f2cf. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2189264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb511f5b10d42316975c87e1e64acb1c7481102a1192fd99194a25bf1ab3bbb. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR0015049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a8bc2a1b09f015a9c4f489b9f0ab06e2aadbaf9ee8814ddcbaba2e6f38fcc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2252436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2184230d89b2d6c71c0b9354cffa2f2d7aed92cdf2948ebc1d029a19736cd3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2252437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb511f5b10d42316975c87e1e64acb1c7481102a1192fd99194a25bf1ab3bbb. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR0015049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bef990126b72b8a531b645977b6aa5d842a44fb5842d3e223f9c763bfb3c839. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2237432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e586a705e4f1d675fe8a5b88ada8108a65a1abfffa8c025225b50467c62baa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTDG1302680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41c40eb85592bd6c31411a1fc04c9d5507af016e125b69a77cfb67d91ffd8e3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2353684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b2b09c5b7f530fadc9b2602709df9afac88007954a474d7a7556a2886cf3af. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2335080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567c74547fa248b5e51e615031c9111f698e990d7bff78baf4231861ed863357. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRERA2403482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3d78f63e019b98c9115c1d6d28be88443957cbd9effd523c5164229be5a8af. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2488124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293faa88818bc7140448b7687ff55865691c198846ba513d887a4c1dd9bf6764. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2473339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af8023681389e9e1b6869bbc2e4c8fa9b86fcb41db577b5933b62b8852917cb. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2485595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a359d4a50b4186bacb50735ab02e3a6ef03b3f780cec87d705da9ff2ddc6d7. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMSDU1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3c0967dc3997fb0f752ce5a72c723949f51a84349d9bac960d1bd44dbbb338. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMSDU1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfee283b7ab40a2f62a1c712ed24158cd9194702131dcaa7adea38be7b3a3a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMSDU1700371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4dafe5bd2c05c18ca62531d22492e2d5cde18443d30e4266b6173f87df5f88. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDLM1900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40f83b9d943748d7e5a38976dbf10900c3baa436b9460f9b41b44cfdb68d5a0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZAK1609201.